CVE-2026-19489
Received Received - Intake

Buffer Overflow in Citrix NetScaler ADC and Gateway

Publication date: 2026-08-19

Last updated on: 2026-08-19

Assigner: NetScaler

Description
Vulnerability in NetScaler ADC and NetScaler Gateway. This issue affects ADC: from 14.1 through 73.32 and from 13.1 through 63.21; Gateway: from 14.1 through 73.32 and from 13.1 through 63.21.

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Meta Information

Published
2026-08-19
Last Modified
2026-08-19
Generated
2026-08-19
AI Q&A
2026-08-19
EPSS Evaluated
N/A
NVD
CVE-2026-19489
EUVD
EUVD-2026-62394

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
citrix netscaler_adc From 14.1 (inc) to 73.32 (inc)
citrix netscaler_adc From 13.1 (inc) to 63.21 (inc)
citrix netscaler_gateway From 14.1 (inc) to 73.32 (inc)
citrix netscaler_gateway From 13.1 (inc) to 63.21 (inc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This is a vulnerability in Citrix NetScaler ADC and NetScaler Gateway affecting specific versions. The issue allows remote attackers to potentially execute arbitrary code or cause a denial of service due to unspecified flaws in the affected products.

Impact Analysis

An attacker could exploit this to gain unauthorized access, execute malicious code, or disrupt services. Systems running vulnerable versions of NetScaler ADC or Gateway are at risk of compromise, leading to potential data breaches or service outages.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, violating GDPR and HIPAA requirements for data protection and access control. Organizations may face compliance violations, fines, or legal consequences if exploited.

Mitigation Strategies

Update NetScaler ADC and NetScaler Gateway to versions beyond the affected ranges (14.1 through 73.32 and 13.1 through 63.21). Apply patches or upgrades as soon as possible to address the vulnerability.

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